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Round|Lab Grown|IGI

1.85ct E IF Round Lab Grown Diamond

EX • E/IF • IGI LG685511046

Shape and cutting style on the report: Round brilliant

Certificate IGI LG685511046

Diamond specifications and retailer prices

From £258 GBP
$344 USD
As of October 29, 2026
Save £2,768 GBP (91%) vs most expensive(unlock to see where)
27 retailers carry this diamond
Most expensive: £3,026 GBP at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.85ct lab-grown round diamond

This 1.85ct lab-grown round sits in the one-and-a-half to two carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG685511046 or 685511046. Listed at 27 retailers as of October 29, 2026, with prices from £258 to £3,026, a £2,768 spread on the same certified stone. Brilliant Earth lists it at £3,026. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.85
Carat
E
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.2°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG685511046
Dimensions8.02 × 8.06 × 4.80 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
8.02 mm8.06 mm1.85 ctE / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG685511046
Side View
Table 57.0%Crown 32.2°Girdle: MediumPavilion 41.1°Culet: NoneDepth 59.7%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: £3,026 GBP|Low: £248 GBP|High: £3,034 GBP|Avg: £878 GBP|-0.2%
Brilliant Earth
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October 29, 2026
Retailer 5£258 GBP
Retailer 13£288 GBP
Retailer 18£300 GBP
Retailer 4£320 GBP
Retailer 8£320 GBP
Retailer 6£356 GBP
Retailer 10£430 GBP
Retailer 25£436 GBP
Retailer 21£484 GBP
Retailer 9£522 GBP
Retailer 24£550 GBP
Retailer 22£564 GBP
Retailer 2£571 GBP
Retailer 23£742 GBP
Retailer 3£794 GBP
Retailer 7£950 GBP
Retailer 15£1,020 GBP
Retailer 19£1,022 GBP
Retailer 14£1,029 GBP
Retailer 17£1,060 GBP
Retailer 12£1,209 GBP
Retailer 11£1,240 GBP
Retailer 16£1,247 GBP
Retailer 20£1,289 GBP
Retailer 26£1,937 GBP
Brilliant Earth£3,026 GBP

27 data points across 26 retailers

27 retailers£258 GBP to £3,026 GBP

A
Cheapest Retailer
-
£258 GBP
$344 USD
A
Retailer 2
-
£288 GBP
$384 USD
View
Final sale: no returns
A
Retailer 3
-
£300 GBP
$399 USD
View
A
Retailer 4
-
£320 GBP
$426 USD
View
A
Retailer 5
-
£320 GBP
$426 USD
View
A
Retailer 6
-
£356 GBP
HK$3,700 HKD
View
A
Retailer 7
-
£430 GBP
$572 USD
View
A
Retailer 8
-
£436 GBP
$580 USD
View
A
Retailer 9
-
£484 GBP
View
A
Retailer 10
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£522 GBP
$695 USD
View
A
Retailer 11
-
£550 GBP
ZAR 11,827 ZAR
View
A
Retailer 12
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£564 GBP
€715 EUR
View
A
Retailer 13
-
£571 GBP
View
A
Retailer 14
-
£742 GBP
A$1,521 AUD
View
A
Retailer 15
-
£794 GBP
$1,057 USD
View
B+
Retailer 16
-
£950 GBP
$1,265 USD
View
B+
Retailer 17
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£1,020 GBP
$1,358 USD
View
B+
Retailer 18
-
£1,022 GBP
SGD 1,839 SGD
View
B+
Retailer 19
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£1,029 GBP
$1,370 USD
View
B+
Retailer 20
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£1,060 GBP
$1,412 USD
View
B+
Retailer 21
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£1,209 GBP
$1,610 USD
View
B+
Retailer 22
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£1,240 GBP
$1,652 USD
View
B+
Retailer 23
-
£1,247 GBP
View
B+
Retailer 24
-
£1,289 GBP
View
B+
Retailer 25
-
£1,937 GBP
$2,580 USD
View
B
Retailer 26
-
£2,480 GBP
View
Most Expensive
B
Brilliant Earth
14282957A · Oct 29
£3,026 GBP
$4,030 USD
View
26 more retailers have this diamond
Prices start from £258 GBPSave up to £2,768 GBP

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
1.85ct Round
£258 GBP